JS获取dom 对象 ajax操作读写cookie函数

复制代码代码如下:var LF = {}; LF.version = '1.0.0'; //全局函数 function $(objName) { return document.getElementById(objName); } function $name(objName) { return document.getElementsByName(objName); } function $tag(objName) { return document.getElementsByTagName(objName); } //广告swf　 flashWrite('SW/2009/HomeGroBuy.swf','950','70','navigation', '##ffffff', 'menuNum=0', 'transparent'); function flashWrite(url,w,h,id,bg,vars,win){ var flashStr= "<div align="center"><object classid='clsid:d27cdb6e-ae6d-11cf-96b8-444553540000' codebase='http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0' width='"+w+"' height='"+h+"' id='"+id+"' align='middle'>"+ "<param name='allowScriptAccess' value='always' />"+ "<param name='movie' value='"+url+"' />"+ "<param name='FlashVars' value='"+vars+"' />"+ "<param name='wmode' value='"+win+"' />"+ "<param name='menu' value='false' />"+ "<param name='quality' value='high' />"+ "<param name='bgcolor' value='"+bg+"' />"+ "<embed src='"+url+"' FlashVars='"+vars+"' wmode='"+win+"' menu='false' quality='high' bgcolor='"+bg+"' width='"+w+"' height='"+h+"' name='"+id+"' align='middle' allowScriptAccess='always' type='application/x-shockwave-flash' pluginspage='http://www.macromedia.com/go/getflashplayer' />"+ "</object></div>"; document.write(flashStr); } //广告图片 imgWrite('images/pic04.jpg', '780', '90', 'http://www.lfang.com/wzzt/2009/lgzt/'); function imgWrite(url,w,h,linkUrl){ var flashStr= ""; if (linkUrl=="") flashStr="<img src=""+url+"" border="0" width=""+w+"" height=""+h+""/>"; else flashStr="<a href=""+linkUrl+"">"+"<img src=""+url+"" border="0" width=""+w+"" height=""+h+""/>"+"</a>"; document.write(flashStr); } //AJAX操作 LF.ajax={ getXmlhttp : function() { var http_request; if(window.XMLHttpRequest) { http_request = new XMLHttpRequest(); if (http_request.overrideMimeType) { http_request.overrideMimeType("text/xml"); } } else if (window.ActiveXObject) { try { http_request = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { http_request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {} } } if (!http_request) { window.alert("can't create XMLHttpRequest object."); return null; } return http_request; }, loadAJAXTab : function (url){// 一般是DIV try { var xhttp=LF.ajax.getXmlhttp(); xhttp.open("GET",url,false); xhttp.send(null); if (xhttp.readyState == 0)return "0初始化中......"; if (xhttp.readyState == 1)return "1初始化中......"; if (xhttp.readyState == 2)return "2初始化中......"; if (xhttp.readyState == 3)return "3初始化中......"; if(xhttp.readyState == 4 && (xhttp.status==200)){ var resText=xhttp.responseText; if (resText!="")return resText; } }catch (e) { return e; } }, dataSubmit:function(url,urlParameter,method){ //ajax post提交数据 try{ if(method==""){method="POST";} var xhttp=LF.ajax.getXmlhttp(); xhttp.open(method, url+urlParameter, false); xhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); xhttp.send(null); if (xhttp.readyState == 0)return "0初始化中......"; if (xhttp.readyState == 1)return "1初始化中......"; if (xhttp.readyState == 2)return "2初始化中......"; if (xhttp.readyState == 3)return "3初始化中......"; if (xhttp.readyState == 4 && xhttp.status == 200)return xhttp.responseText; }catch(e){ return e; } } }; //工具 LF.util = { setCookie:function (name,value){//写cookies var Days = 30; var exp = new Date(); exp.setTime(exp.getTime() + Days*24*60*60*1000); document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString(); }, getCookie:function (name){//读取cookies var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)"); if(arr=document.cookie.match(reg)) return unescape(arr[2]); else return null; }, delCookie:function (name){//删除cookies var exp = new Date(); exp.setTime(exp.getTime() - 1); var cval=getCookie(name); if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString(); }, escape:function (html) {//过滤html html = html.replace(/&/g, "&"); html = html.replace(/</g, "<"); html = html.replace(/>/g, ">"); html = html.replace(/xA0/g, " "); html = html.replace(/x20/g, " "); return html; } };

以便更好控制元素来满足我们的要求，那么我们可以通过outerHeight(options)和outerWidth(options)来获取到这部分的高度和宽度。outerHeight(options) 获取第一个匹配元素外部高度（默认包括补白和边框）。此方法对>>>详细阅读

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JS获取dom 对象 ajax操作 读写cookie函数

JS获取dom 对象 ajax操作读写cookie函数